| PRIMEQUEST System Disk Mirror for Windows User's Guide V1.0 |
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Contents
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| Chapter 3 Operation | > 3.2 Boot Disk Backup and Restore |
Restore the boot disk with ScWL.
Removing the data group
Boot the system if possible, and remove the data group.
If the boot disk is restored, the data group will be removed automatically. However, partitions are not removed in this event, and drive letter assignment may not be performed normally. For this reason, before restoring the boot disk, you are recommended to remove the data group.
For more information on how to remove groups, see "Unmirroring."
Stopping the system
Stop the system.
Restoring
Restore the backup data created as described in "Backing Up the Boot Disk" to a disk at the location where the backed up disk resides.
For the restore operation, use ScWL.
Restore backup data to only one disk. Even if the backup data is restored to multiple disks, the mirroring state is not restored.
For the usage of ScWL, see "PRIMEQUEST SystemcastWizard Lite User's Guide."
Booting the system
From the EFI Boot Manager menu, select the boot entry indicating the restored boot disk, and boot the system.
Example: The mirror group name of the backed up boot disk is Group0 and the disk name is Disk0.
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EFI Boot Manager ver 1.xx [xx.xx] |
For the boot entry naming conventions, see "Boot entry name" of "Configurations."
Opening the command prompt
Select [start]-[All Programs]-[Accessories]-[Command Prompt] to open Command Prompt.
Confirming the state
If the boot disk is restored:
The data group is removed.
Disks swapped after the boot disk was backed up will be in ERROR status.
In a situation where disks other than the restored disk exist in the mirror group of the boot disk, synchronization copying from the restored disk to those disks is performed.
When the synchronization copying is in execution, the copy destination disks are in COPY status.
Example: The disk number of the restored disk is 0 and the disk name is Disk0.
> sdxinfo -D OBJ NAME TYPE GROUP DEVNAM DEVBLKS STATUS ---- ------ ------ ------- ------ ------------ ------- disk Disk0 mirror Group0 0 35291136 VALID disk Disk1 mirror Group0 1 35291136 COPY |
The synchronization copying progress (%) is shown in the RATE field in the sdxinfo -G -e long command output. When the synchronization copying is completed, the RATE field comes to display an asterisk (*).
> sdxinfo -G -e long OBJ NAME DISKS BLKS SPARE JRM TYPE COPY RATE CURBLKS COPYBLKS DLY ----- ------- --------------------------- ------------ ----- --- ------ ---- ---- ------------ ------------ ---- group Group0 Disk0:Disk1 35291136 0 on mirror run 2 705823 34766848 0 |
When the synchronization copying is ended normally, all the disks in the mirror group will be in VALID status.
> sdxinfo -D OBJ NAME TYPE GROUP DEVNAM DEVBLKS STATUS ---- ------ ------ ------- ------ ------------ ------- disk Disk0 mirror Group0 0 35291136 VALID disk Disk1 mirror Group0 1 35291136 VALID |
For details on the sdxinfo command, see "sdxinfo - Disk configuration and status viewing."
Restoring disks swapped after backup
Disks swapped after the boot disk was backed up will be in ERROR status if the boot disk is restored.
To restore the normal status, remove the disks in ERROR status from the mirror group once and add them again to the group.
For more information on how to remove disks, see "Preparing for Disk Swap (Removing Disks)."
For more information on how to add disks, see "Restoring Disks after Swapping (Adding Disks)."
Restoring the data group
The boot disk restore operation has no effect on data disk content, but data disks are excluded from PSDM management.
To restore the mirroring configuration of the data disks, remove all partitions on the mirror destination disks and set up mirroring again.
For the mirroring setup method, see "Mirroring."
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